禽流感是由禽类流感病毒引起的，对家禽和人类有很大危害的传染病，下列叙述中属于体液免疫的是①注射禽流感病毒疫苗，使机体产生抗体，与入侵的禽流感病毒结合，抑制病毒的活性　②在人体内使禽流感失去感染人体细胞

题干

禽流感是由禽类流感病毒引起的，对家禽和人类有很大危害的传染病，下列叙述中属于体液免疫的是（　　）
①注射禽流感病毒疫苗，使机体产生抗体，与入侵的禽流感病毒结合，抑制病毒的活性　②在人体内使禽流感失去感染人体细胞的能力③将患病的家禽深埋　④形成沉淀被吞噬细胞消化　⑤效应T细胞与靶细胞密切接触，导致靶细胞裂解，释放出禽流感病毒

C：①③④

A：①②⑤

B：②③⑤　

D：①②④

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D

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还原短文。

My mother is a kind and nice woman. ____ One Sunday night, when I was watching the film Harry Potter very happily. Mother asked me to go to bed. ____ that I didn't move. But for a while, I noticed that she didn't say anything. ____ I was so sad that I went into my room and cried. I thought "I have only two nights in a week to enjoy the TV. ____" The next day she cooked and talked with me as usual. I pretended not to hear, but she didn't mind and told me why she didn't allow me to watch TV ____ Then I understood her. I love my mother.

A. But she is very strict with me.

B. Because she wanted me to have a good rest.

C. Then she got angry and turned off the TV.

D. I love the film so much.

E. Why doesn't mother allow me to watch TV?

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